package com.xiaow.utils;

import com.alibaba.fastjson.JSONObject;
import io.jsonwebtoken.Jwts;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.SecureRandom;
import java.util.Base64;

public class MD5Util {

	private static final String SALT = "xiaow";

	public static String encode(String password) {
		password = password + SALT;
		MessageDigest md5 = null;
		try {
			md5 = MessageDigest.getInstance("MD5");
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
		char[] charArray = password.toCharArray();
		byte[] byteArray = new byte[charArray.length];

		for (int i = 0; i < charArray.length; i++) {
            byteArray[i] = (byte) charArray[i];
        }
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		for (int i = 0; i < md5Bytes.length; i++) {
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16) {
				hexValue.append("0");
			}

			hexValue.append(Integer.toHexString(val));
		}
		return hexValue.toString();
	}
	public static  String getSaltRandom(){
        SecureRandom random = new SecureRandom();
        byte bytes[] = new byte[15];
        random.nextBytes(bytes);
        String salt = org.apache.commons.codec.binary.Base64.encodeBase64String(bytes);
        return salt;
    }

	public static void main(String[] args) throws UnsupportedEncodingException {

		System.out.println(encode("123"));
	}
}